﻿#region Copyright (c) 2006-2012 nHydrate.org, All Rights Reserved
// --------------------------------------------------------------------- *
//                           NHYDRATE.ORG                                *
//              Copyright (c) 2006-2012 All Rights reserved              *
//                                                                       *
//                                                                       *
// This file and its contents are protected by United States and         *
// International copyright laws.  Unauthorized reproduction and/or       *
// distribution of all or any portion of the code contained herein       *
// is strictly prohibited and will result in severe civil and criminal   *
// penalties.  Any violations of this copyright will be prosecuted       *
// to the fullest extent possible under law.                             *
//                                                                       *
// THE SOURCE CODE CONTAINED HEREIN AND IN RELATED FILES IS PROVIDED     *
// TO THE REGISTERED DEVELOPER FOR THE PURPOSES OF EDUCATION AND         *
// TROUBLESHOOTING. UNDER NO CIRCUMSTANCES MAY ANY PORTION OF THE SOURCE *
// CODE BE DISTRIBUTED, DISCLOSED OR OTHERWISE MADE AVAILABLE TO ANY     *
// THIRD PARTY WITHOUT THE EXPRESS WRITTEN CONSENT OF THE NHYDRATE GROUP *
//                                                                       *
// UNDER NO CIRCUMSTANCES MAY THE SOURCE CODE BE USED IN WHOLE OR IN     *
// PART, AS THE BASIS FOR CREATING A PRODUCT THAT PROVIDES THE SAME, OR  *
// SUBSTANTIALLY THE SAME, FUNCTIONALITY AS THIS PRODUCT                 *
//                                                                       *
// THE REGISTERED DEVELOPER ACKNOWLEDGES THAT THIS SOURCE CODE           *
// CONTAINS VALUABLE AND PROPRIETARY TRADE SECRETS OF NHYDRATE,          *
// THE REGISTERED DEVELOPER AGREES TO EXPEND EVERY EFFORT TO             *
// INSURE ITS CONFIDENTIALITY.                                           *
//                                                                       *
// THE END USER LICENSE AGREEMENT (EULA) ACCOMPANYING THE PRODUCT        *
// PERMITS THE REGISTERED DEVELOPER TO REDISTRIBUTE THE PRODUCT IN       *
// EXECUTABLE FORM ONLY IN SUPPORT OF APPLICATIONS WRITTEN USING         *
// THE PRODUCT.  IT DOES NOT PROVIDE ANY RIGHTS REGARDING THE            *
// SOURCE CODE CONTAINED HEREIN.                                         *
//                                                                       *
// THIS COPYRIGHT NOTICE MAY NOT BE REMOVED FROM THIS FILE.              *
// --------------------------------------------------------------------- *
#endregion
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;

namespace nHydrate.Dsl.Design.Converters
{
	internal class VersionConverter : TypeConverter
	{
		public VersionConverter()
		{
		}

		public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
		{
			if (destinationType == typeof(string)) return true;
			return base.CanConvertTo(context, destinationType);
		}

		public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType)
		{
			if (destinationType == typeof(string))
			{
				return value;
			}
			return null;
		}

		public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
		{
			if (sourceType == typeof(string)) return true;
			return base.CanConvertFrom(context, sourceType);
		}

		public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
		{
			value = this.GetVersion((string)value);
			return value;
		}

		private string GetVersion(string versionString)
		{
			var arr = versionString.Split('.');
			var s1 = ((arr.Length >= 1) ? arr[0] : "0");
			var s2 = ((arr.Length >= 2) ? arr[1] : "0");
			var s3 = ((arr.Length >= 3) ? arr[2] : "0");
			var s4 = ((arr.Length >= 4) ? arr[3] : "0");

			s1 = this.GetValue(s1).ToString();
			s2 = this.GetValue(s2).ToString();
			s3 = this.GetValue(s3).ToString();
			s4 = this.GetValue(s4).ToString();
			return s1 + (s2 == string.Empty ? string.Empty : "." + s2) + (s3 == string.Empty ? string.Empty : "." + s3) + (s4 == string.Empty ? string.Empty : "." + s4);

		}

		private int GetValue(string s)
		{
			try
			{
				return int.Parse(s);
			}
			catch
			{
				return 0;
			}
		}

	}
}
